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| MC68HC908JK1 Datasheet, PDF (45/210 Pages) Motorola, Inc – MC68HC908JK1 | |||
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FLASH Memory (FLASH)
FLASH Protection
1
Algorithm for programming
a row (32 bytes) of FLASH memory
Set PGM bit
2 Write any data to any FLASH address
within the row address range desired
3
Wait for a time, tnvs
4
Set HVEN bit
5
Wait for a time, tpgs
6
Write data to the FLASH address
to be programmed
7
Wait for a time, tPROG
Completed
programming
Y
this row?
N
9
NOTE:
The time between each FLASH address change (step 6 to step 6), or
the time between the last FLASH address programmed
10
to clearing PGM bit (step 6 to step 9)
must not exceed the maximum programming
time, tPROG max.
11
This row program algorithm assumes the row/s
to be programmed are initially erased.
12
Clear PGM bit
Wait for a time, tnvh
Clear HVEN bit
Wait for a time, trcv
End of Programming
Figure 4-2. FLASH Programming Flowchart
MC68H(R)C908JL3 â Rev. 1.0
MOTOROLA
FLASH Memory (FLASH)
Technical Data
45
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